package com.webchat.pgc.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;

@Configuration
public class GwCorsFilter {
  // 当前跨域请求最大有效时长。这里默认1天
  private static final long MAX_AGE = 24 * 60 * 60;

  private CorsConfiguration buildConfig() {
    CorsConfiguration corsConfiguration = new CorsConfiguration();
    corsConfiguration.addAllowedOrigin("*"); // 1 设置访问源地址
    corsConfiguration.addAllowedHeader("*"); // 2 设置访问源请求头
    corsConfiguration.addAllowedMethod("*"); // 3 设置访问源请求方法
    corsConfiguration.setMaxAge(MAX_AGE);
    return corsConfiguration;
  }

  @Bean
  public CorsFilter corsFilter() {
    org.springframework.web.cors.UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    source.registerCorsConfiguration("/**", buildConfig()); // 4 对接口配置跨域设置
    return new CorsFilter(source);
  }
}